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Forum: Pentax SLR Lens Discussion 08-03-2015, 09:02 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By SamC
Replies: 870
Views: 274,952
Just did the conversion, really want to thank all the guidance along the way. Just converted a dying 16-50mm (hard to hit focus) to work perfectly on my K-3!

After inserting card back to the camera, to enable debug mode do the following:

I was using a K10D with FW1.30, took me about 2hrs trying different notepad docs. In the end this is what worked for me.
1. Switch camera off.
2. Open card door and leave it open.
3. Switch camera on -- debug menu shows up.
4. Close card door.
5. Left/right to enable debug mode.
6. Press OK to confirm.
7. Go to Set-Up menu, go to the end and Set-up will change to TEST MODE menu, AF TEST option is there with Focus Corr inside.

I don't have too much use for the K10D otherwise, is there interest to circulate the body within the Pentax community for those that need to convert their lenses? I could include the SD card with the correct MODSET.TXT file to speed up the mods.
I am located in Toronto, Canada.
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